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题库 / OG2016-SC-50
It is called a sea, but the landlocked Caspian is actually the largest lake on Earth, which covers more than four times the surface area of its closest rival in size, North America's Lake Superior.
It is called a sea, but the landlocked Caspian is actually the largest lake on Earth, which covers
Although it is called a sea, actually the landlocked Caspian is the largest lake on Earth, which covers
Though called a sea, the landlocked Caspian is actually the largest lake on Earth, covering
Though called a sea but it actually is the largest lake on Earth, the landlocked Caspian covers
Despite being called a sea, the largest lake on Earth is actually the landlocked Caspian, covering
题目分析：
本题利用了伴随状语的逻辑主语问题来考查。
选项分析：
A选项：which covers是非限定性定语从句，在语法上就近修饰Earth。但是在逻辑上，能覆盖一些河四倍的面积的只能是“河”，而不能是“地球”，因此其逻辑主语应该是the landlocked Caspian或the largest lake。
B选项：which covers的主语错误同(A)。
C选项：Correct. 本选项在语法和逻辑上均是正确的。（covering此时可以做伴随状语）（Though called a sea也是伴随状语）
D选项：连词but身后是完整的句子，即，it actually is the largest lake on Earth。但but身前的called a sea是一个过去分词短语，这使得but身前缺少谓语动词，语法有误。
E选项：能被叫“海”的肯定是某一条“河”，而不能是the largest lake（只能说，C这个湖被叫做海，但其实它是最大的湖，不能说最大的湖被叫海）。
C选项里面：Though called a sea难道 though作为从属连词省略主语，难道不是错的吗？记得毕出语法7套里第1套第四题好像说只有and, but, or 可以省略主语，其他从属连词例如 before, after, when , if , even though 等等后面需要有主语的。。。
难道是因为这个though 放句首所以可以省略？
emmm 我刚又看了一下，although called 是 连词+Ved做伴随状语来着，只有although it is called a sea 才是连词+句子的形式。。。
是的。一定要区分清楚省略和简化的不同概念。想省略主语，只能并列连词才有这个权力。
如果是要简化，那所有的状语从句，只要是主语和它所修饰的句子的主语相同，都可以简化为伴随状语。
所以，类似于 before, after, when , if , even though 等等，身后加分词短语都是正确的，且都是伴随状语。但因为它们不是并列连词而是从属连词，所以不能直接省略主语。
嗯嗯！ 谢谢老师！
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